


Duration PERIOD = new Duration(milliseconds:2100);


void sayHello(Timer t) {
  print("hello\n");
}
/**
 * For non-trivial uses of the Chrome apps API, please see the 'chrome'
 * package.
 * 
 * http://pub.dartlang.org/packages/chrome
 * http://developer.chrome.com/apps/api_index.html
 */
void main() {
  new Timer.periodic(PERIOD, sayHello);
//   while(true);
}  

 